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88 lines
2.8 KiB
88 lines
2.8 KiB
# -*- encoding : utf-8 -*-
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# This file is part of Wiki UFC.
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# Copyright (C) 2007-2015 by Álinson Xavier <isoron@gmail.com>
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# Copyright (C) 2007-2008 by Adriano Freitas <adrianoblue@gmail.com>
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# Copyright (C) 2007-2008 by André Castro <aisushin@gmail.com>
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# Copyright (C) 2007-2008 by Rafael Barbosa <86.rafael@gmail.com>
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# Copyright (C) 2007-2008 by Henrique Bustamante <bustamante.rique@gmail.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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class String
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include ActionView::Helpers::SanitizeHelper
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def format_wiki
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markdown = Redcarpet::Markdown.new(Redcarpet::Render::HTML)
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out = dup
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out = out.gsub('\\', '\\\\\\')
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out, inline_math = out.extract_blocks(/({\$((?!\$}).)*\$})/m, 'INLINEMATH')
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out, block_math = out.extract_blocks(/({\$\$((?!\$\$}).)*\$\$})/m,
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'BLOCKMATH')
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out = markdown.render(out)
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out = out.reinsert_blocks(block_math, 'BLOCKMATH')
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out = out.reinsert_blocks(inline_math, 'INLINEMATH')
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sanitize out
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end
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def extract_blocks(regexp, prefix)
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matches = []
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modified = gsub(regexp) do |m|
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matches << m
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"#{prefix}#{matches.length - 1}#{prefix}"
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end
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return modified, matches
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end
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def reinsert_blocks(blocks, prefix)
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modified = dup
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blocks.each_with_index do |block, idx|
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modified.gsub!("#{prefix}#{idx}#{prefix}", block)
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end
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modified
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end
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end
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module WikiHelper
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def format_diff(text)
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last = 0
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result = ""
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text << "\n"
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style = { '+' => 'add', '-' => 'del', ' ' => 'line' }
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text.each_line do |line|
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next if line.match(/^---/)
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next if line.match(/^\+\+\+/)
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if line[0].chr == '@'
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result << "<tr><td class='diff_space diff_border_#{style[last.chr]}' ></td></tr>"
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last = 0
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else
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if line[0] != last
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last = line[0] if last == 0 || line[0].chr == '+' || line[0].chr == '-'
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result << "<tr><td class='diff_border_#{style[last.chr]} "
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last = line[0]
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else
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result << "<tr><td class='"
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end
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result << "diff_#{style[line[0].chr]}'>" \
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" #{line[1..-1]} </td></td>"
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end
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end
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"<table class='diff'>#{result}</table>"
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end
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end
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